Sir Iain Duncan Smith
- Constituency
- Chingford and Woodford Green
- Region
- England
- Member since
- 9 April 1992
This parliament
- Voting participation
- 70%
- Debates contributed to
- 201
- Registered interests
- 15
- Declared value
- £52,729
Record last updated 14 Oct 2026
Sir Iain Duncan Smith is a long-serving Conservative MP, in the longest serving 5% of MPs overall and the longest serving 5% of Conservative MPs, having been first elected in April 1992. He has cast 418 votes out of 588 eligible divisions, a participation rate of 71%, and has contributed to 201 debates out of 11,848 eligible debates, placing him in the top 25% of MPs by debate participation. His contributions to debate have focused primarily on Foreign Affairs & Defence, Justice & Law, and International Development, while his voting has concentrated on Parliamentary Procedure, Employment & Workers Rights, and Justice & Law.
Summary generated on 09/10/2026 (View details)
VOTING PARTICIPATION
418 / 593
70.49%
Ranked #362 of 655 MPs (45th percentile)
DEBATE CONTRIBUTIONS
201 / 11985
483 total contributions
Ranked #170 of 655 MPs (74th percentile)
REGISTERED INTERESTS
15
£52,728.54
Ranked #139 of 655 MPs (79th percentile)
PARLIAMENTARY RECORD
The Rt Hon Sir Iain Duncan Smith is the Conservative MP for Chingford and Woodford Green, and has been an MP continually since 9 April 1992.
Constituencies
- Chingford and Woodford Green May 1997 – present · 8 terms
- Chingford Apr 1992 – May 1997
Posts held
- Secretary of State for Work and Pensions May 2010 – Mar 2016
- Leader of HM Official Opposition Sep 2001 – Nov 2003 · Opposition
- Shadow Secretary of State for Defence Jun 1999 – Sep 2001 · Opposition
- Shadow Secretary of State for Work and Pensions Jun 1997 – Jun 1999 · Opposition